FHWA NBI 2024 Inspection record Public-domain dataset

FDR 624

Carrying FDR 624 over RUBY CR

RUBY CR, Beaverhead, Montana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
23 t Inventory load rating

Bridge Snapshot: FDR 624

The FDR 624 bridge in Beaverhead, Montana carries FDR 624 over RUBY CR. It was built in 1952, making it 74 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 7.3 meters (24 feet) end to end. Daily traffic averages 20 vehicles, placing it in the lower-traffic tier of Montana bridges. It is owned and maintained by U.S. Forest Service.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 3/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 22.7 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How FDR 624 compares

▼ 8.0
Load rating vs Montana average (30.7 t)
Bottom 22%
Lower load rating than 78% of Montana bridges
217
Bridges in Beaverhead · 20 in Poor condition
FDR 624 22.7 t
Montana average 30.7 t

Live comparison across Montana.

Historical Sufficiency Rating

PlainBridge-computed
31.2 / 100 - historical 20–49.9 band
Structural adequacy /55
5.2
Serviceability /30
11.0
Essentiality /15
15.0
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
6/9
Fair (5–6)
Superstructure
7/9
Good (7–9)
Substructure
3/9
Poor (1–4)
Inventory Load Rating
22.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1952
Material
Wood or Timber
Number of Spans
1
Structure Length
7.3 m (24 ft)
Deck Width
4.6 m (15 ft)
Owner
U.S. Forest Service
Avg Daily Traffic
20 vehicles/day
Structure Number
010203000000007

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
  • The substructure (piers and abutments) is in poor condition (3/9), showing advanced deterioration that may require priority repair.

How to read this record

FDR 624 is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare FDR 624 against other structures in Beaverhead and across Montana. Montana bridges
  • Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge

Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.

Frequently Asked Questions

What do the condition ratings mean for FDR 624?

FDR 624 in Beaverhead, Montana has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 3/9 on the FHWA's 0–9 scale.

How often is FDR 624 inspected?

FDR 624's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 20 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. FDR 624 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for FDR 624?

FDR 624 has an NBI inventory load rating of 22.7 metric tons.

Who is responsible for maintaining FDR 624?

FDR 624 is owned and maintained by U.S. Forest Service.

How old is FDR 624 and does age affect safety?

FDR 624 was built in 1952, making it 74 years old.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.